400 m trains set the curve; Interlaken's 1915 Aare bridges get 50 more years
BLS is rebuilding 1.7 km of track into Interlaken Ost and strengthening two listed 1915 riveted Aare bridges for 50 more years, all for 400 m InterCitys.
PAZ Kaffi is the AEC newsroom of PAZ Academy Zürich — daily dispatches on architecture, computational design, BIM and AI.
BLS is rebuilding 1.7 km of track into Interlaken Ost and strengthening two listed 1915 riveted Aare bridges for 50 more years, all for 400 m InterCitys.
30 OCT
Drag the sun, watch the section light up: raycasting from Wolfenstein 3D to SN EN 17037, with a GhPython snippet that scores how much floor the sun reaches.
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Free Archicad Powersession, 18 Nov 2026 in Zürich: SIA 400 dimensioning, norm checks, model hygiene and SIA 416 areas checked live in the model. 20 seats.
29 OCT
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Urban scaling says dense cities pay off, yet Zürich lost 21,500 residents to its hinterland. The OECD finds room for 1.6 million inside today's zones.
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Metropolis turns 100 as Don Davis opens its centenary in Lyon. Read Lang's stacked city as a section, and draw your project's lower city on the sheet.
29 OCT
Build a U-value and Glaser condensation check in plain Python: same wall, same insulation, one swap, and 0 vs 4.44 kg/m² of winter water. Code included.
28 OCT
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Zürich office soppelsa architekten wins Schwarzenburg's Oberstufenzentrum with «Merel»: 40 applicants, a unanimous jury, about CHF 20 million, move-in 2031.
28 OCT
MIT CBA, Bologna, Innsbruck and Tokyo fold CNC-cut aluminium into Resch tripod cells that lock rigid. A 7 m shell, built in days with screwdrivers.
28 OCT
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Bauart and Patrimonium turned a 1950s Coop warehouse in Renens into 51 homes: a sawn atrium, kept mushroom columns, cut concrete reused as park paving.
"The machine doesn't have taste. We have taste. The machine has a tempo."
27 OCT
From Wang and Penrose to quasicrystals and the 2023 hat and Spectre: how few tile types build non-repeating façades and paving, plus a GhPython hack.
27 OCT
Francis Halzen's 2026 Physics Nobel honours IceCube: 86 boreholes, 5,160 sensors on a 125 m hex grid in South Pole ice. What the site-as-material means for you.
27 OCT
Build a micrograd-style autograd engine in plain Python, then use gradient descent to fit how far a facade leans: 2.08 mm per metre from six laser offsets.

A studio in District B-12 has been operating in three time zones for nineteen months, with a permanent night shift that handles the regulator's queue while the rest of the world sleeps. The model: caffeine, clear handoffs, and a refusal to pretend that buildings are designed during business hours. We embedded for two nights.

BLS is rebuilding 1.7 km of track into Interlaken Ost and strengthening two listed 1915 riveted Aare bridges for 50 more years, all for 400 m InterCitys.
Every morning at 04:00 the press in the basement of the kaffi spits out 2,400 broadsheets in a font we cut ourselves. The kids pick them up on the way to site, fold them into their toolbelts, and read them at lunch with grease on their fingers. The feed has not killed this. The feed has made it more useful — a single, slow, opinionated edit of a day too noisy to read live.
The print desk takes one position per story. The web desk runs a hundred. Both can be true. The point is that someone, somewhere, is still willing to pick.

There is a reason the best façade we ran this month was sketched on a napkin in the kaffi at 06:12 and not generated in a prompt. The hand still knows things the model has to be told twice.
Every studio we visit now hires straight into a 22:00–06:00 rotation. The juniors love it. The seniors who fought to get out of it find it harder to argue with the throughput numbers.
Hybrid CLT + steel core. Topping out by Q3.
Robotic masonry hits a real spec, not a demo.
And why the big vendors are quietly nervous.
Maps, owners, opening hours, kaffi quality.
The AEC dispatch lands in your inbox at 04:42 CET. Twelve stories, one bad joke, zero PR fluff. We sign each one.
The airlock is still sealed. Join the dispatch for now — VIP seats get called there first.
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